Response of subfossil Cladocera in Gerzensee (Swiss Plateau) to early Late Glacial environmental change

► Late-Glacial Cladocera were dominated by cold-tolerant species in Gerzensee. ► Cladocera suggest gradual increase in summer temperature during Termination 1a. ► Aquatic plant development affected diversification of Cladocera in Bølling/Allerød.